US5915968A - Enossal single tooth implant - Google Patents

Enossal single tooth implant Download PDF

Info

Publication number
US5915968A
US5915968A US09/029,553 US2955398A US5915968A US 5915968 A US5915968 A US 5915968A US 2955398 A US2955398 A US 2955398A US 5915968 A US5915968 A US 5915968A
Authority
US
United States
Prior art keywords
spacer sleeve
bore
single tooth
coronal
base member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/029,553
Inventor
Axel Kirsch
Walter Durr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IMZ Fertigungs und Vertriebsgesellschaft fuer dentale Technologie mbH
Original Assignee
IMZ Fertigungs und Vertriebsgesellschaft fuer dentale Technologie mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19607427A external-priority patent/DE19607427C2/en
Application filed by IMZ Fertigungs und Vertriebsgesellschaft fuer dentale Technologie mbH filed Critical IMZ Fertigungs und Vertriebsgesellschaft fuer dentale Technologie mbH
Application granted granted Critical
Publication of US5915968A publication Critical patent/US5915968A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0065—Connecting devices for joining an upper structure with an implant member, e.g. spacers with expandable or compressible means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0059—Connecting devices for joining an upper structure with an implant member, e.g. spacers with additional friction enhancing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means

Definitions

  • the invention is directed to an enossal single tooth implant for a firmly seated dental prosthesis, having an essentially cylindrical base member introducible into a bore introduced into a jaw bone, said base member comprising a blind bore open toward its coronal or outer end, having a spacer sleeve emplaceable on the coronal or outer face edge of the base member, an implant post introducible into the blind bore and connectable to the base member, said implant post penetrating an inside bore of the spacer sleeve, which has a connecting means for the twist-resistant fastening of the spacer sleeve on the base member and a fastening head for the dental prosthesis.
  • German Patent Application 195 09 762.9-32 discloses the improvement of a dental implant according to German Letters Patent 40 28 855, whereby the implant post, which also serves therein as retainer screw for the spacer sleeve relative to the base member, comprises the fastening head for the firmly seated dental prosthesis at its coronal end, said fastening head projecting beyond the spacer sleeve.
  • the dental prosthesis is either glued to the fastening head or is connected thereto by cementing.
  • the dental prosthesis can in fact likewise be attached to the spacer sleeve with a glued or cemented connection.
  • This difficulty is based on the fact that the circumferential wall of the spacer sleeve is so thin that the required forces for fastening the dental prosthesis cannot be exerted with a securing screw of the above-described type without inappropriate deformation of the spacer sleeve walls.
  • the invention is based on the object of further-improving the single tooth implant of the species to the effect that a screwed connection is enabled between the dental prosthesis and the fastening head without deformation of the walls of the spacer sleeve.
  • the fastening head is formed by a coronal, hollow end region of the spacer sleeve; in that the coronal end of the implant post is cervically arranged under the end region; and that an inset nut provided with a threaded bore proceeding perpendicular to the longitudinal center axis of the spacer sleeve is arranged in the end region, and a securing screw will penetrate an opening provided in the circumferential wall of the end region and is screwable into said inset nut for securing the dental prosthesis.
  • the circumferential wall of the spacer sleeve is fashioned tapering frustum-like in coronal direction in the end region.
  • the invention also potentially provides that the implant post can be screwed into an inside bore of the implant upon anti-twist engagement of interlocking tongues of the spacer sleeve with complementary interlocking elements of the base member.
  • the inset nut is fashioned of one piece with a clevis-type web or pin that is to be put in place on the coronal face edge of the circumferential wall of the spacer sleeve.
  • recesses which are positioned opposite one another are provided in the coronal face edge of the spacer sleeve, and a clevis-like web or pin which is fashioned of one piece with the inset nut is received in these recesses.
  • the recesses are arranged such that their common center axis proceeds perpendicular to the symmetry axis of the opening that is provided in the circumferential wall of the spacer sleeve.
  • the clevis-like pin or web of the inset nut should then also be arranged to proceed perpendicular to the symmetry axis of the threaded bore.
  • the inset nut At its end facing toward the clevis-like pin or web, the inset nut preferably has an outside diameter, at least in regions, that, for enabling a friction lock between the inset nut and spacer sleeve, is slightly larger than the inside diameter of the inside bore of the spacer sleeve in the corresponding region an inserted inset nut.
  • the inset nut can be reliably positioned with reference to the spacer sleeve.
  • the inset nut has its end facing toward the clevis-like pin or web provided with projections that, residing opposite one another, are provided at both sides of the clevis-type web, whereby the outside contour of the projections defines the regions of larger outside diameter.
  • the invention is based on the surprising perception that one succeeds in assuring a faultless screwed connection between the dental prosthesis and the coronal end region of the spacer sleeve fashioned as fastening head in that an inset nut is hooked into the spacer sleeve.
  • This inset nut will accept the securing screw proceeding transversely to the longitudinal center axis of the spacer sleeve, so that the circumferential wall of the spacer sleeve need not absorb any pressure forces.
  • FIG. 1 is a partial cross-sectional view through the longitudinal center axis with portions in elevation of a spacer sleeve of a first exemplary embodiment of the enossal single tooth implant of the invention
  • FIG. 2 is a plan view onto the spacer sleeve according to FIG. 1;
  • FIG. 3 is a side view with portions broken away of a spacer sleeve of a second exemplary embodiment
  • FIG. 4 is a plan view of the spacer sleeve according to FIG. 3;
  • FIG. 5 is a cross-sectional view of a spacer sleeve of a third exemplary embodiment of the enossal single tooth implant of the invention.
  • FIG. 6 is a perspective view of an inset nut for employment given the single tooth implant of FIG. 5;
  • FIG. 7 is a second cross-sectional view of the coronal end of the single tooth implant of the invention taken on a plane extending perpendicular to the plane of FIGS. 1, 3 and 5.
  • the spacer sleeves 14 shown in FIGS. 1, 3 and FIG. 5 comprise a plurality of interlocking tongues 16 that adjoin a centering collar 18 that is offset by a shoulder 20 relative to the region 22 of the spacer sleeve 14 adjoining the cervical end of the spacer sleeve in coronal direction.
  • the spacer sleeve 14 is introducible into a base member (not shown) that has been fixed into the jaw of the patient and has its coronal end provided with interlocking elements corresponding to the interlocking tongues 16, so that the spacer sleeve 14 can be connected to the base member in an anti-twist fashion.
  • the spacer sleeve 14 Upon inter-engagement of the interlocking tongues 16 with the corresponding interlocking elements of the base member, the spacer sleeve 14 is firmly connectable in an anti-twist fashion to the latter with an implant post fashioned as a retainer screw that can be screwed into an inside bore of the base member.
  • FIGS. 1, 3 and 5 also show that the spacer sleeve 14, following a fastening region 24 in which an inside bore of the cervically and coronally open spacer sleeve 14 has a diameter that corresponds to that of the implant post (not shown), coronally comprises an end region 24 in which an inside bore 26 (FIGS. 1 and 5) has a larger diameter than the inside bore 25 in the area of the fastening region 22.
  • the aforementioned retainer head of the implant post engages a shoulder 27 between the bores 25 and 26, which shoulder 27 lies close to that end of the fastening region 24 lying at the bottom in the drawing (FIGS. 1 and 5), so that, thus, the inside bore 26 is fashioned coronally hollow following the retainer head of the implant post.
  • FIGS. 1, 3 and 5 also show, the outside of the end region 24 of the spacer sleeve is provided with an attachment shoulder 28, as disclosed in detail in terms of function and purpose in the above-cited German Patent Application 195 09 672.9-32, which is referenced in this respect for further explanation.
  • a circumferential wall 30 of the spacer sleeve 14 comprises a coronally tapering frustum shape.
  • FIG. 1 shows how close to the coronal face edge of the end region 24 of the spacer sleeve 14 an inset nut 34 is hooked into the inside bore 26 thereof with a clevis-type pin or web 32 put in place on the coronal face edge of the circumferential wall.
  • This inset nut 34 is fashioned solid except for a threaded bore 36 proceeding perpendicular to the longitudinal center axis of the spacer sleeve 14.
  • a securing screw 38 is screwed into the threaded bore 36.
  • This securing screw 38 has a screw head 40 and will penetrate an opening 42 provided in the circumferential wall 30 after the threaded bore 36 has been aligned with the opening 42 before the securing screw 38 is screwed in.
  • the relative positioning of securing screw 38 and spacer sleeve 14 is shown especially clearly in FIG. 2.
  • FIGS. 3 and 4 recesses 44, 46 that reside opposite one another on a common center axis 48 are provided in the coronal face edge of the spacer sleeve 14.
  • the clevis-type web (not shown in FIG. 3) is received into these recesses 44, 46.
  • a corresponding dimensioning of the recesses 44, 46 makes it possible that the clevis-type web rests essentially free of play therein.
  • Flattened portions 50, 52 that serve for the application of a tool or for the alignment of the dental prosthesis or, respectively, the framing thereof are formed in the circumferential wall 30 under the recesses 44, 46. These flattened portions also serve for formation of a cement bar when putting the crown of the tooth in place.
  • the enossal single tooth implant shown in FIG. 5 comprises an inset nut 34 whose end facing toward the clevis-type web 32 comprises two projections 62, 68, which are fashioned by grooves or spaces 64 and 66 and are integral with the inset nut 34.
  • the outside contour of the projections 62, 68 is dimensioned such that the outside diameter of the inset nut 34 is slightly enlarged in the region of the projections 62 and 68 in comparison to the inside diameter of the inside bore 26 of the spacer sleeve 14. In the seating region of the projections 62, 68 against the inside wall of the inside bore 26, the projections 62, 68 therefore exert a force directed toward the circumferential wall 30 that holds the inset nut 34 in a friction lock therewith.
  • the projections 62 and 68 can thereby yield into the spaces 64 and 66 that are formed between the projections 62, 68 and the clevis-type web 32.
  • the inset nut 34 can thus be positioned in the inside bore 26 so that the threaded bore 36 is aligned with the opening 42 for the securing screw 38. No dislocation of the inset nut 34 in the bore 26 need be feared when the securing screw 38 is screwed in.
  • FIG. 6 shows the inset nut 34 in a perspective view.
  • Circular segment -shaped projections are provided at both sides of the clevis-like web or pin 32 of the inset nut 34 with only the projection 62 being shown in FIG. 6.
  • the section length of a projection 62 approximately corresponds to the inside diameter of the threaded bore 36.
  • a free space 64 remains between the projection 62 and the clevis-type web 32.
  • FIG. 7 shows how the inset nut 34 lies in the inside bore 26 of the spacer sleeve.
  • the diameter of the inset nut is not enlarged compared to the inside diameter of the inside bore 26. It can be especially clearly seen from the illustration of FIG. 7 that the web 32 and threaded bore 36 lie perpendicular to one another in their symmetry axes, so that a pre-positioning of the inset nut 34 can easily occur.
  • the spacer sleeve is composed of a titanium alloy or the like.

Abstract

Enossal tooth implant for firmly seating dental prostheses has an essentiy cylindrical base member, which is introducible into a bore introduced in a jaw bone and has a blind bore open toward its coronal end, a spacer sleeve which has an inside bore, is emplaceable on a coronal face edge of the base member and has an arrangement for a twist-resistant fastening to the base member, and has a fastening head for a dental prosthesis and an implant post which is introducible through the inside bore into the blind bore and connectable to the base member. The fastening head is formed by a coronal, hollow end region of the spacer sleeve and the implant post is received in this hollow end region leaving a space for receiving an inset nut which is provided with a threaded bore extending perpendicular to the longitudinal center axis of the spacer sleeve and which is aligned with an opening in a circumferential wall of the spacer sleeve so that a securing screw can penetrate through the opening and be threaded into the threaded bore of the inset nut for securing the dental prosthesis.

Description

BACKGROUND OF THE INVENTION
The invention is directed to an enossal single tooth implant for a firmly seated dental prosthesis, having an essentially cylindrical base member introducible into a bore introduced into a jaw bone, said base member comprising a blind bore open toward its coronal or outer end, having a spacer sleeve emplaceable on the coronal or outer face edge of the base member, an implant post introducible into the blind bore and connectable to the base member, said implant post penetrating an inside bore of the spacer sleeve, which has a connecting means for the twist-resistant fastening of the spacer sleeve on the base member and a fastening head for the dental prosthesis.
German Patent Application 195 09 762.9-32 discloses the improvement of a dental implant according to German Letters Patent 40 28 855, whereby the implant post, which also serves therein as retainer screw for the spacer sleeve relative to the base member, comprises the fastening head for the firmly seated dental prosthesis at its coronal end, said fastening head projecting beyond the spacer sleeve. For example, the dental prosthesis is either glued to the fastening head or is connected thereto by cementing.
When the species-defining single tooth implant of German Patent Application 195 09 762.9-32 is modified to the effect that the implant post ends coronally at a distance from the coronal face edge within the inside bore of the spacer sleeve, whereby the coronal end region of the spacer sleeve itself then forms the fastening head for the dental prosthesis, then the dental prosthesis can in fact likewise be attached to the spacer sleeve with a glued or cemented connection. However, there are difficulties in securing the framing or structure of the dental prosthesis with a securing screw that preferably proceeds perpendicular to the longitudinal center axis of the spacer sleeve in those applications wherein a screwed connection is desired between the framing of the dental prosthesis and the fastening head.
This difficulty is based on the fact that the circumferential wall of the spacer sleeve is so thin that the required forces for fastening the dental prosthesis cannot be exerted with a securing screw of the above-described type without inappropriate deformation of the spacer sleeve walls.
SUMMARY OF THE INVENTION
The invention is based on the object of further-improving the single tooth implant of the species to the effect that a screwed connection is enabled between the dental prosthesis and the fastening head without deformation of the walls of the spacer sleeve.
This object is inventively achieved in that the fastening head is formed by a coronal, hollow end region of the spacer sleeve; in that the coronal end of the implant post is cervically arranged under the end region; and that an inset nut provided with a threaded bore proceeding perpendicular to the longitudinal center axis of the spacer sleeve is arranged in the end region, and a securing screw will penetrate an opening provided in the circumferential wall of the end region and is screwable into said inset nut for securing the dental prosthesis.
It can thereby be provided that the circumferential wall of the spacer sleeve is fashioned tapering frustum-like in coronal direction in the end region.
The invention also potentially provides that the implant post can be screwed into an inside bore of the implant upon anti-twist engagement of interlocking tongues of the spacer sleeve with complementary interlocking elements of the base member.
According to a first embodiment of the invention, the inset nut is fashioned of one piece with a clevis-type web or pin that is to be put in place on the coronal face edge of the circumferential wall of the spacer sleeve.
It is provided according to a second embodiment that recesses which are positioned opposite one another are provided in the coronal face edge of the spacer sleeve, and a clevis-like web or pin which is fashioned of one piece with the inset nut is received in these recesses. An extremely exact positioning of the inset nut relative to the spacer sleeve is possible when the clevis-type web rests play-free in the recesses.
It can thereby be provided that the recesses are arranged such that their common center axis proceeds perpendicular to the symmetry axis of the opening that is provided in the circumferential wall of the spacer sleeve.
The clevis-like pin or web of the inset nut should then also be arranged to proceed perpendicular to the symmetry axis of the threaded bore.
At its end facing toward the clevis-like pin or web, the inset nut preferably has an outside diameter, at least in regions, that, for enabling a friction lock between the inset nut and spacer sleeve, is slightly larger than the inside diameter of the inside bore of the spacer sleeve in the corresponding region an inserted inset nut. Here, too, the inset nut can be reliably positioned with reference to the spacer sleeve.
It can thereby be provided that the inset nut has its end facing toward the clevis-like pin or web provided with projections that, residing opposite one another, are provided at both sides of the clevis-type web, whereby the outside contour of the projections defines the regions of larger outside diameter.
The invention is based on the surprising perception that one succeeds in assuring a faultless screwed connection between the dental prosthesis and the coronal end region of the spacer sleeve fashioned as fastening head in that an inset nut is hooked into the spacer sleeve. This inset nut will accept the securing screw proceeding transversely to the longitudinal center axis of the spacer sleeve, so that the circumferential wall of the spacer sleeve need not absorb any pressure forces.
Further features and advantages of the invention derive from the following description in which exemplary embodiments are explained on the basis of the schematic drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a partial cross-sectional view through the longitudinal center axis with portions in elevation of a spacer sleeve of a first exemplary embodiment of the enossal single tooth implant of the invention;
FIG. 2 is a plan view onto the spacer sleeve according to FIG. 1;
FIG. 3 is a side view with portions broken away of a spacer sleeve of a second exemplary embodiment;
FIG. 4 is a plan view of the spacer sleeve according to FIG. 3;
FIG. 5 is a cross-sectional view of a spacer sleeve of a third exemplary embodiment of the enossal single tooth implant of the invention;
FIG. 6 is a perspective view of an inset nut for employment given the single tooth implant of FIG. 5; and
FIG. 7 is a second cross-sectional view of the coronal end of the single tooth implant of the invention taken on a plane extending perpendicular to the plane of FIGS. 1, 3 and 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
At their cervical end, which is the lower end in the drawing, the spacer sleeves 14 shown in FIGS. 1, 3 and FIG. 5 comprise a plurality of interlocking tongues 16 that adjoin a centering collar 18 that is offset by a shoulder 20 relative to the region 22 of the spacer sleeve 14 adjoining the cervical end of the spacer sleeve in coronal direction. In the way disclosed in German Patent Application 195 09 762.9-32, the spacer sleeve 14 is introducible into a base member (not shown) that has been fixed into the jaw of the patient and has its coronal end provided with interlocking elements corresponding to the interlocking tongues 16, so that the spacer sleeve 14 can be connected to the base member in an anti-twist fashion. Upon inter-engagement of the interlocking tongues 16 with the corresponding interlocking elements of the base member, the spacer sleeve 14 is firmly connectable in an anti-twist fashion to the latter with an implant post fashioned as a retainer screw that can be screwed into an inside bore of the base member.
FIGS. 1, 3 and 5 also show that the spacer sleeve 14, following a fastening region 24 in which an inside bore of the cervically and coronally open spacer sleeve 14 has a diameter that corresponds to that of the implant post (not shown), coronally comprises an end region 24 in which an inside bore 26 (FIGS. 1 and 5) has a larger diameter than the inside bore 25 in the area of the fastening region 22. The aforementioned retainer head of the implant post engages a shoulder 27 between the bores 25 and 26, which shoulder 27 lies close to that end of the fastening region 24 lying at the bottom in the drawing (FIGS. 1 and 5), so that, thus, the inside bore 26 is fashioned coronally hollow following the retainer head of the implant post.
As FIGS. 1, 3 and 5 also show, the outside of the end region 24 of the spacer sleeve is provided with an attachment shoulder 28, as disclosed in detail in terms of function and purpose in the above-cited German Patent Application 195 09 672.9-32, which is referenced in this respect for further explanation.
In the end region 24, a circumferential wall 30 of the spacer sleeve 14 comprises a coronally tapering frustum shape.
FIG. 1 shows how close to the coronal face edge of the end region 24 of the spacer sleeve 14 an inset nut 34 is hooked into the inside bore 26 thereof with a clevis-type pin or web 32 put in place on the coronal face edge of the circumferential wall. This inset nut 34 is fashioned solid except for a threaded bore 36 proceeding perpendicular to the longitudinal center axis of the spacer sleeve 14. A securing screw 38 is screwed into the threaded bore 36. This securing screw 38 has a screw head 40 and will penetrate an opening 42 provided in the circumferential wall 30 after the threaded bore 36 has been aligned with the opening 42 before the securing screw 38 is screwed in. The relative positioning of securing screw 38 and spacer sleeve 14 is shown especially clearly in FIG. 2.
The alignment is facilitated when, as shown FIGS. 3 and 4, recesses 44, 46 that reside opposite one another on a common center axis 48 are provided in the coronal face edge of the spacer sleeve 14. The clevis-type web (not shown in FIG. 3) is received into these recesses 44, 46. A corresponding dimensioning of the recesses 44, 46 makes it possible that the clevis-type web rests essentially free of play therein. Flattened portions 50, 52 that serve for the application of a tool or for the alignment of the dental prosthesis or, respectively, the framing thereof are formed in the circumferential wall 30 under the recesses 44, 46. These flattened portions also serve for formation of a cement bar when putting the crown of the tooth in place.
The enossal single tooth implant shown in FIG. 5 comprises an inset nut 34 whose end facing toward the clevis-type web 32 comprises two projections 62, 68, which are fashioned by grooves or spaces 64 and 66 and are integral with the inset nut 34. The outside contour of the projections 62, 68 is dimensioned such that the outside diameter of the inset nut 34 is slightly enlarged in the region of the projections 62 and 68 in comparison to the inside diameter of the inside bore 26 of the spacer sleeve 14. In the seating region of the projections 62, 68 against the inside wall of the inside bore 26, the projections 62, 68 therefore exert a force directed toward the circumferential wall 30 that holds the inset nut 34 in a friction lock therewith. The projections 62 and 68 can thereby yield into the spaces 64 and 66 that are formed between the projections 62, 68 and the clevis-type web 32. The inset nut 34 can thus be positioned in the inside bore 26 so that the threaded bore 36 is aligned with the opening 42 for the securing screw 38. No dislocation of the inset nut 34 in the bore 26 need be feared when the securing screw 38 is screwed in.
FIG. 6 shows the inset nut 34 in a perspective view. Circular segment -shaped projections are provided at both sides of the clevis-like web or pin 32 of the inset nut 34 with only the projection 62 being shown in FIG. 6. The section length of a projection 62 approximately corresponds to the inside diameter of the threaded bore 36. A free space 64 remains between the projection 62 and the clevis-type web 32.
In a longitudinal sectional view, FIG. 7 shows how the inset nut 34 lies in the inside bore 26 of the spacer sleeve. In the embodiment of the single tooth implant according to FIG. 5 or, respectively, FIG. 6, the diameter of the inset nut is not enlarged compared to the inside diameter of the inside bore 26. It can be especially clearly seen from the illustration of FIG. 7 that the web 32 and threaded bore 36 lie perpendicular to one another in their symmetry axes, so that a pre-positioning of the inset nut 34 can easily occur.
Just like the implant post and the inset nut 34, which is fashioned of one piece with the clevis-type web 32, the spacer sleeve is composed of a titanium alloy or the like.
The described arrangement makes it possible to secure the dental prosthesis or, respectively, the framing thereof with the securing screw 38 at the end region of the spacer sleeve 14, which simultaneously forms the fastening head for the firmly seated dental prosthesis (not shown). In a way familiar to a person skilled in the art, such a screwed connection exhibits considerable advantages over a glued connection.
Both individually as well as in arbitrary combination, the features of the invention disclosed in the above description, in the drawing as well as in the claims can be critical for realizing the invention.

Claims (10)

We claim:
1. Enossal single tooth implant for a firmly seated dental prosthesis, said implant having an essentially cylindrical base member introducible into a bore introduced into a jaw bone, said base member comprising a blind bore open toward its coronal end, said implant having a spacer sleeve emplaceable on the coronal face edge of the base member, an implant post introducible into the blind bore and connectable to the base member, said implant post penetrating an inside bore of the spacer sleeve, which has a connecting means for the twist-resistant fastening of the spacer sleeve on the base member and said implant having a fastening head for the dental prosthesis, the improvement comprising the fastening head being formed by a coronal, hollow end region of the spacer sleeve; a coronal end of the implant post being cervically arranged under the end region; and an inset nut being provided with a threaded bore proceeding perpendicular to the longitudinal center axis of the spacer sleeve being arranged in the end region, a securing screw penetrating an opening provided in a circumferential wall of the end region and being screwable into said inset nut for securing the dental prosthesis.
2. Single tooth implant according to claim 1, wherein the circumferential wall of the spacer sleeve is fashioned tapering frustum-shape in a coronal direction in the end region.
3. Single tooth implant according to claim 1, wherein the implant post can be screwed into an inside bore of the implant upon anti-twist engagement of interlocking tongues of the spacer sleeve with interlocking elements of the base member complementary thereto.
4. Single tooth implant according to claim 1, wherein the inset nut is a one-piece member with a clevis-type web that is to be put in place on a coronal face edge of the circumferential wall of the spacer sleeve.
5. Single tooth implant according to claim 1, which includes recesses residing opposite one another being provided in a coronal face edge of the spacer sleeve, a clevis-type web integral with the inset nut being received in said recesses.
6. Single tooth implant according to claim 5, wherein the recesses are arranged such that their common center axis proceeds perpendicular to the symmetry axis of the opening that is provided in the circumferential wall of the spacer sleeve.
7. Single tooth implant according to claim 1, which includes a clevis-type web of the inset nut being arranged to extend perpendicular to the symmetry axis of the threaded bore.
8. Single tooth implant according to claim 7, wherein the inset nut adjacent the end with the clevis-type web has at least regions with an outside diameter slightly larger than an inside diameter of the inside bore of the spacer sleeve to form a frictional lock between the nut and spacer sleeve.
9. Single tooth implant according to claim 8, wherein the inset nut has its end facing toward the web provided with projections that, residing opposite one another, are provided at both sides of the clevis-type web, the outside contour of the projections forming the regions of larger outside diameter.
10. Single tooth implant according to claim 1, wherein the spacer sleeve has a circumferential wall with an outer end face with a pair of recesses opposite one another, said inset nut being a one-piece member having a clevis-type web at an end, said clevis-like web being received in said recesses when the nut is inserted into the hollow end region.
US09/029,553 1995-09-06 1996-08-09 Enossal single tooth implant Expired - Fee Related US5915968A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19532875 1995-09-06
DE19532875 1995-09-06
DE19607427 1996-02-28
DE19607427A DE19607427C2 (en) 1995-09-06 1996-02-28 Endosseous single tooth implant
PCT/DE1996/001520 WO1997009003A2 (en) 1995-09-06 1996-08-09 Endosseus single-tooth implant

Publications (1)

Publication Number Publication Date
US5915968A true US5915968A (en) 1999-06-29

Family

ID=26018340

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/029,553 Expired - Fee Related US5915968A (en) 1995-09-06 1996-08-09 Enossal single tooth implant

Country Status (5)

Country Link
US (1) US5915968A (en)
EP (1) EP0848601A2 (en)
JP (1) JPH11512003A (en)
AU (1) AU1702097A (en)
WO (1) WO1997009003A2 (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6280195B1 (en) * 1999-06-11 2001-08-28 Astra Aktiebolag Method of treating a partially or totally edentulous patient
US6733291B1 (en) 1999-09-27 2004-05-11 Nobel Biocare Usa, Inc. Implant with internal multi-lobed interlock
US20050147942A1 (en) * 2001-12-21 2005-07-07 Jan Hall Method for producing a surface structure on an implant, and such an implant
US20050260540A1 (en) * 2001-12-21 2005-11-24 Jan Hall Implant, and method and system for producing such an implant
US20060286509A1 (en) * 2005-06-17 2006-12-21 Zimmer Dental, Inc. Dental restorative system and components
US20060286508A1 (en) * 2005-06-17 2006-12-21 Zimmer Dental, Inc. Dental restorative system and components
US20070037122A1 (en) * 2005-06-17 2007-02-15 Zimmer Dental, Inc. Dental restorative system and components
US7597557B2 (en) 2003-05-21 2009-10-06 Nobel Biocare Services Ag Condensing skeletal implant that facilitate insertions
US20090305192A1 (en) * 2002-12-30 2009-12-10 Nobel Bicare Services Ag Implant arrangement
US20100227294A1 (en) * 2009-03-06 2010-09-09 Gc Corporation Wax model base for abutment of dental implant
US7806693B2 (en) 2007-04-23 2010-10-05 Nobel Biocare Services Ag Dental implant
US8038442B2 (en) 2007-04-23 2011-10-18 Nobel Biocare Services Ag Dental implant and dental component connection
US20120061868A1 (en) * 2010-09-09 2012-03-15 3M Innovative Properties Company Methods and apparatus for making a polymeric orthodontic appliance
US8636511B2 (en) 2002-11-13 2014-01-28 Biomet 3I, Llc Dental implant system
EP2965711A1 (en) * 2014-07-10 2016-01-13 Terrats Triquell, Montserrat Dental abutment, abutment and screw assembly, and dental implant system
US20160128808A1 (en) * 2014-11-12 2016-05-12 Main Brilliant Co. Ltd. Prosthodontic device with detachable suprastructure and related screw
US20160374782A1 (en) * 2013-12-23 2016-12-29 Bredent Gmbh & Co. Kg Dental prosthesis arrangement
US9681930B2 (en) 2014-12-15 2017-06-20 Jjgc Industria E Comercio De Materiais Dentarious S/A Implants for enhanced anchoring within bone
US20180028287A1 (en) * 2015-03-11 2018-02-01 Sweden & Martina Spa Dental prosthesis
US9925024B2 (en) 2011-06-28 2018-03-27 Biomet 3I, Llc Dental implant and abutment tools
US9936980B2 (en) 2014-04-10 2018-04-10 Medacta International Sa Device for fixing surgical implants in place and relative assembly procedure with anchoring means
USD816841S1 (en) 2014-12-15 2018-05-01 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
IT201800009574A1 (en) * 2018-10-18 2020-04-18 Fabio Clementi DENTAL PROSTHETIC DEVICE FOR DENTAL CROWNS FIXABLE ON BONE IMPLANTS, WITH TRANSVERSAL ANCHORING SCREW;
US10898301B2 (en) 2016-05-05 2021-01-26 Jjgc Industria E Comercio De Materiais Dentarios S.A. Prosthetic assembly and method for producing the same
US11246684B2 (en) * 2016-09-27 2022-02-15 Harrogate Implant Innovations Ltd Dental prosthesis

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US568995A (en) * 1896-10-06 Flush-tank
CH505615A (en) * 1969-01-20 1971-04-15 Martinelli Claude Implant prosthesis
US3866321A (en) * 1974-01-02 1975-02-18 Maurice Valen Crown and bridge prefabricated system and implant
DE9002824U1 (en) * 1989-06-07 1990-05-17 Nobelpharma Ab, Goeteborg, Se
US4988292A (en) * 1989-07-26 1991-01-29 Rosen David B Abutment for orthodontic anchorage to a dental implant fixture
US5071345A (en) * 1989-08-30 1991-12-10 Rosen David B Dental crown analog for orthodontic anchorage
DE4028855A1 (en) * 1989-05-31 1992-03-12 Eberle Medizintech Elemente Tooth implant protected against rotation - has post connected by screw union with base body, and distance socket with centering connection
DE9202656U1 (en) * 1992-02-29 1992-04-23 Zl Microdent-Attachment Gmbh, 5805 Breckerfeld, De
US5110292A (en) * 1990-08-30 1992-05-05 Calcitek, Inc. Endosseous implant system with internal jam nut
US5122059A (en) * 1990-09-08 1992-06-16 Eberle Medizintechnische Element Gmbh Enossal implant for a firmly seated tooth replacement
US5125840A (en) * 1990-09-08 1992-06-30 Eberle Medizintechnische Element Gmbh Enossal single tooth implant with twisting restraint
US5431567A (en) * 1993-05-17 1995-07-11 Daftary; Fereidoun Anatomical restoration dental implant system with interlockable various shaped healing cap assembly and matching abutment member
DE19509762A1 (en) * 1995-03-17 1996-09-26 Imz Fertigung Vertrieb Endosseous single tooth implant with spacer sleeve
US5620323A (en) * 1994-08-22 1997-04-15 Bressman; Robert A. Dental restoration structure
US5660545A (en) * 1995-09-25 1997-08-26 Crystal Medical Technology, A Division Of Folsom Metal Products Gear drive for implant connector
US5667384A (en) * 1994-06-03 1997-09-16 Institut Straumann Ag Device for forming a dental prosthesis and method of manufacturing such a device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4405797C1 (en) * 1994-02-23 1995-05-18 Friatec Keramik Kunststoff Dental implant with reliable seal

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US568995A (en) * 1896-10-06 Flush-tank
CH505615A (en) * 1969-01-20 1971-04-15 Martinelli Claude Implant prosthesis
US3866321A (en) * 1974-01-02 1975-02-18 Maurice Valen Crown and bridge prefabricated system and implant
DE4028855A1 (en) * 1989-05-31 1992-03-12 Eberle Medizintech Elemente Tooth implant protected against rotation - has post connected by screw union with base body, and distance socket with centering connection
DE9002824U1 (en) * 1989-06-07 1990-05-17 Nobelpharma Ab, Goeteborg, Se
US4988292A (en) * 1989-07-26 1991-01-29 Rosen David B Abutment for orthodontic anchorage to a dental implant fixture
US5071345A (en) * 1989-08-30 1991-12-10 Rosen David B Dental crown analog for orthodontic anchorage
US5110292A (en) * 1990-08-30 1992-05-05 Calcitek, Inc. Endosseous implant system with internal jam nut
US5122059A (en) * 1990-09-08 1992-06-16 Eberle Medizintechnische Element Gmbh Enossal implant for a firmly seated tooth replacement
US5125840A (en) * 1990-09-08 1992-06-30 Eberle Medizintechnische Element Gmbh Enossal single tooth implant with twisting restraint
DE9202656U1 (en) * 1992-02-29 1992-04-23 Zl Microdent-Attachment Gmbh, 5805 Breckerfeld, De
US5431567A (en) * 1993-05-17 1995-07-11 Daftary; Fereidoun Anatomical restoration dental implant system with interlockable various shaped healing cap assembly and matching abutment member
US5667384A (en) * 1994-06-03 1997-09-16 Institut Straumann Ag Device for forming a dental prosthesis and method of manufacturing such a device
US5620323A (en) * 1994-08-22 1997-04-15 Bressman; Robert A. Dental restoration structure
DE19509762A1 (en) * 1995-03-17 1996-09-26 Imz Fertigung Vertrieb Endosseous single tooth implant with spacer sleeve
US5660545A (en) * 1995-09-25 1997-08-26 Crystal Medical Technology, A Division Of Folsom Metal Products Gear drive for implant connector

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6280195B1 (en) * 1999-06-11 2001-08-28 Astra Aktiebolag Method of treating a partially or totally edentulous patient
US20060199151A1 (en) * 1999-09-27 2006-09-07 Hurson Steven M Implant with internal multi-lobed interlock
US20040175674A1 (en) * 1999-09-27 2004-09-09 Hurson Steven M. Implant with internal multi-lobed interlock
US20050095560A1 (en) * 1999-09-27 2005-05-05 Hurson Steven M. Implant with internal multi-lobed interlock
US20110020767A1 (en) * 1999-09-27 2011-01-27 Nobel Biocare Services Ab Implant with internal multi-lobed interlock
US6733291B1 (en) 1999-09-27 2004-05-11 Nobel Biocare Usa, Inc. Implant with internal multi-lobed interlock
US20080085492A1 (en) * 1999-09-27 2008-04-10 Nobel Biocare Services Ab Implant with internal multi-lobed interlock
US8721335B2 (en) 1999-09-27 2014-05-13 Nobel Biocare Usa, Inc. Implant with internal multi-lobed interlock
US20050147942A1 (en) * 2001-12-21 2005-07-07 Jan Hall Method for producing a surface structure on an implant, and such an implant
US20050260540A1 (en) * 2001-12-21 2005-11-24 Jan Hall Implant, and method and system for producing such an implant
US9737392B2 (en) 2001-12-21 2017-08-22 Nobel Biocare Services Ag Implant, and method and system for producing such an implant
US8827703B2 (en) 2001-12-21 2014-09-09 Nobel Biocare Services Ag Implant, and method and system for producing such an implant
US8764443B2 (en) 2001-12-21 2014-07-01 Nobel Biocare Services Ag Method for producing a surface structure on an implant, and such an implant
US9931182B2 (en) 2002-11-13 2018-04-03 Biomet 3I, Llc Dental implant system
US9549793B2 (en) 2002-11-13 2017-01-24 Biomet 3I, Llc Dental implant system
US9883927B2 (en) 2002-11-13 2018-02-06 Biomet 3I, Llc Dental implant system
US8636511B2 (en) 2002-11-13 2014-01-28 Biomet 3I, Llc Dental implant system
US20090305192A1 (en) * 2002-12-30 2009-12-10 Nobel Bicare Services Ag Implant arrangement
US8714977B2 (en) 2003-05-21 2014-05-06 Nobel Biocare Services Ag Condensing skeletal implant that facilitate insertions
US10357338B2 (en) 2003-05-21 2019-07-23 Nobel Biocare Services Ag Condensing skeletal implant that facilitate insertions
US20090325126A1 (en) * 2003-05-21 2009-12-31 Ophir Fromovich Condensing skeletal implant that facilitate insertions
US20100112523A1 (en) * 2003-05-21 2010-05-06 Ophir Fromovich Condensing skeletal implant that facilitate insertions
US11147654B2 (en) 2003-05-21 2021-10-19 Nobel Biocare Services Ag Condensing skeletal implant that facilitate insertions
US8197255B2 (en) 2003-05-21 2012-06-12 Nobel Biocare Services Ag Condensing skeletal implant that facilitate insertions
US7597557B2 (en) 2003-05-21 2009-10-06 Nobel Biocare Services Ag Condensing skeletal implant that facilitate insertions
US8430668B2 (en) 2005-06-17 2013-04-30 Zimmer Dental, Inc. Dental restorative system and components
US20060286508A1 (en) * 2005-06-17 2006-12-21 Zimmer Dental, Inc. Dental restorative system and components
US8506296B2 (en) 2005-06-17 2013-08-13 Zimmer Dental, Inc. Dental restorative system and components
EP3470010A1 (en) * 2005-06-17 2019-04-17 Zimmer Dental Inc. Dental restorative system and components
US20060286509A1 (en) * 2005-06-17 2006-12-21 Zimmer Dental, Inc. Dental restorative system and components
US20070037122A1 (en) * 2005-06-17 2007-02-15 Zimmer Dental, Inc. Dental restorative system and components
US9125710B2 (en) 2005-06-17 2015-09-08 Zimmer Dental, Inc. Dental restorative system and components
US8007279B2 (en) 2005-06-17 2011-08-30 Zimmer Dental, Inc. Dental restorative system and components
US20110081626A1 (en) * 2007-04-23 2011-04-07 Nobel Biocare Services Ag Dental implant
US9452031B2 (en) 2007-04-23 2016-09-27 Nobel Biocare Services Ag Dental implant and dental component connection
US8038442B2 (en) 2007-04-23 2011-10-18 Nobel Biocare Services Ag Dental implant and dental component connection
US7806693B2 (en) 2007-04-23 2010-10-05 Nobel Biocare Services Ag Dental implant
US8360775B2 (en) * 2009-03-06 2013-01-29 Gc Corporation Wax model base for abutment of dental implant
US20100227294A1 (en) * 2009-03-06 2010-09-09 Gc Corporation Wax model base for abutment of dental implant
US9259295B2 (en) * 2010-09-09 2016-02-16 3M Innovative Properties Company Methods and apparatus for making a polymeric orthodontic appliance
US20120061868A1 (en) * 2010-09-09 2012-03-15 3M Innovative Properties Company Methods and apparatus for making a polymeric orthodontic appliance
US9925024B2 (en) 2011-06-28 2018-03-27 Biomet 3I, Llc Dental implant and abutment tools
US10952826B2 (en) 2011-06-28 2021-03-23 Biomet 3I, Llc System and method of dental implant and interface to abutment for restoration
US10543063B2 (en) * 2013-12-23 2020-01-28 Bredent Gmbh & Co. Kg Dental prosthesis arrangement
US20160374782A1 (en) * 2013-12-23 2016-12-29 Bredent Gmbh & Co. Kg Dental prosthesis arrangement
US9936980B2 (en) 2014-04-10 2018-04-10 Medacta International Sa Device for fixing surgical implants in place and relative assembly procedure with anchoring means
US20160008104A1 (en) * 2014-07-10 2016-01-14 Montserrat TERRATS TRIQUELL Dental abutment, abutment and screw assembly, and dental implant system
EP2965711A1 (en) * 2014-07-10 2016-01-13 Terrats Triquell, Montserrat Dental abutment, abutment and screw assembly, and dental implant system
EP3135244A1 (en) * 2014-11-12 2017-03-01 Main Brilliant Co. Ltd. Dental screw of prosthodontic device with detachable suprastructure
US9770314B2 (en) * 2014-11-12 2017-09-26 Main Brilliant Co. Ltd. Prosthodontic device with detachable suprastructure and related screw
US20160128808A1 (en) * 2014-11-12 2016-05-12 Main Brilliant Co. Ltd. Prosthodontic device with detachable suprastructure and related screw
USD816841S1 (en) 2014-12-15 2018-05-01 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
USD837378S1 (en) 2014-12-15 2019-01-01 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
US10398533B2 (en) 2014-12-15 2019-09-03 Jjgc Industria E Comercio De Materiais Dentarios S/A Implants for enhanced anchoring within bone
USD845485S1 (en) 2014-12-15 2019-04-09 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
US9681930B2 (en) 2014-12-15 2017-06-20 Jjgc Industria E Comercio De Materiais Dentarious S/A Implants for enhanced anchoring within bone
USD838369S1 (en) 2014-12-15 2019-01-15 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
US20180028287A1 (en) * 2015-03-11 2018-02-01 Sweden & Martina Spa Dental prosthesis
US10898301B2 (en) 2016-05-05 2021-01-26 Jjgc Industria E Comercio De Materiais Dentarios S.A. Prosthetic assembly and method for producing the same
US11246684B2 (en) * 2016-09-27 2022-02-15 Harrogate Implant Innovations Ltd Dental prosthesis
IT201800009574A1 (en) * 2018-10-18 2020-04-18 Fabio Clementi DENTAL PROSTHETIC DEVICE FOR DENTAL CROWNS FIXABLE ON BONE IMPLANTS, WITH TRANSVERSAL ANCHORING SCREW;
WO2020079607A1 (en) * 2018-10-18 2020-04-23 Fabio Clementi Dental prosthetic device for dental crowns which are fixable to bone implants. with transverse anchoring screw

Also Published As

Publication number Publication date
EP0848601A2 (en) 1998-06-24
WO1997009003A3 (en) 1997-05-22
AU1702097A (en) 1997-03-27
WO1997009003A2 (en) 1997-03-13
JPH11512003A (en) 1999-10-19

Similar Documents

Publication Publication Date Title
US5915968A (en) Enossal single tooth implant
US6244867B1 (en) Multi-part, multi-positionable abutment for use with dental implants
EP0126624B1 (en) Fixed dental implant
US5069622A (en) Spacer
EP1267744B1 (en) A spacer element for an implant
US7491058B2 (en) Dental implant spacer and adapter assembly
JP3557214B2 (en) Spacer member for dental implant
AU708386B2 (en) Impression system for an implant end protruding from the human tissue structure
US5449291A (en) Dental implant assembly having tactile feedback
US5125840A (en) Enossal single tooth implant with twisting restraint
US5437551A (en) Dental implant post and prosthesis construction
US7014464B2 (en) Multi-part abutment and transfer cap for use with an endosseous dental implant with non-circular, beveled implant/abutment interface
US6726481B1 (en) Dental implant
US20070059666A1 (en) Dental implant system
US5908298A (en) Enossal single tooth implant with spacer sleeve
JPH03121065A (en) Distance member
JPH0898849A (en) Tooth restoring structure
JPH11506688A (en) Connection structure between implant and abutment
JP2004529698A (en) Implant
JP2001524346A (en) Surgical implants and surgical fixation screws
EP0987994B1 (en) Distance member for a cemented superstructure
KR100696324B1 (en) Implant device for dental surgery
US20100196850A1 (en) Dental implant
BR112013026305B1 (en) MALE DENTAL COMPONENT SET, FEMALE DENTAL COMPONENT SET AND DENTAL COMPONENT SET
US5549475A (en) Enossal single-tooth implant

Legal Events

Date Code Title Description
REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20030629